JP2007057117A - Heat exchange machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an heat exchange machine of a structure which improves workability in assembling a heat exchanger to a casing. <P>SOLUTION: There is provided a flange 47 that is continuous without a break and forming the same plane, in an outer circumference of the heat exchanger 40 in a position passing through a boundary between an inside air inlet face 41 and an outside air outlet face 44 of the heat exchanger 40, and a boundary between an outside air inlet face 42 and an inside air outlet face 43. An opening for fitting in the heat exchanger 40 is provided in an interior of the casing 1, and an attachment plate part is provided with a size such that a circumference of the opening faces the flange 47 of the heat exchanger 40 when the heat exchanger is in a state fit in the opening. In a state of arranging a packing between the flange and the attachment plate part, the heat exchanger 40 is fit in an opening of the attachment plate part, the packing is pressed against each other by the flange 47 and the attachment plate part, and by managing a bearing pressure, a space between the heat exchanger 40 and the attachment plate part is sealed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a heat exchanger that performs heat exchange between a high-temperature fluid and a low-temperature fluid, and is suitable, for example, as a heat exchanger for a mobile phone base station that cools a heating element such as a communication device.

  Conventionally, heat exchangers described below are sold as mobile phone base station cooling heat exchangers. For example, this heat exchanger is attached to the outer wall of a building (base station) in which a heating element such as a communication device is housed, and exchanges heat between air inside the building and air outside the building.

  FIG. 12 shows an example of a conventional mobile phone base station cooling air-air heat exchanger. In addition, the up-down direction in the figure is the top-bottom direction.

  A heat exchanger 100 illustrated in FIG. 12 includes a housing 10, and an inside air fan 20, an outside air fan 30, and a heat exchanger 80 disposed inside the housing 10.

  The casing 10 is a substantially rectangular parallelepiped, the front side surface in FIG. 12 is a building side surface (hereinafter referred to as the front surface 11), and the back side surface in the figure is the external side surface (hereinafter referred to as the front side). Called the back surface 12). The front surface 11 of the housing 10 has an opening 13 at a portion facing the heat exchanger 80 and a portion above the heat exchanger 80, and the back surface 12 of the housing 10 has a portion facing the heat exchanger 80 and An opening 14 is provided in the lower part.

  The inside air fan 20 sends high-temperature air inside the building (hereinafter referred to as inside air) to the heat exchanger 80, and the outside air fan 30 sends low-temperature air outside the building (hereinafter referred to as outside air) to the heat exchanger. 80.

  Then, the inside air flows into the inside of the housing 10 from the upper part of the front surface 11 of the housing 10 by the inside air fan 20 as indicated by an arrow in FIG. 12, and further heat exchange from the upper surface 80a of the heat exchanger 80. It flows into the inside of the vessel 80 and flows out from the front surface 80b of the heat exchanger 80. On the other hand, as shown by the arrows in FIG. 12, the outside air flows into the inside of the housing 10 from the lower side of the back surface 12 of the housing 10 by the outside air fan 30, and further heat from the lower surface 80 c of the heat exchanger 80. It flows into the inside of the exchanger 80 and flows out from the back surface 80d of the heat exchanger 80.

  Here, the enlarged view of the heat exchanger 80 is shown in FIG. In FIG. 13, a part of the heat exchanger 80 is omitted. In FIG. 13, the same reference numerals as those in FIG.

  As shown in FIG. 13, the heat exchanger 80 includes an inside air passage 81 through which the inside air flows from the upper side in the drawing toward the front side in the drawing, and an outside air passage 82 through which the outside air flows from the lower side in the drawing toward the back side in the drawing. And are arranged alternately. Further, fins 83 (see FIG. 12) are arranged near the centers of the inside air passage 81 and the outside air passage 82. The plate 84 and the fin 83 that form the passages 81 and 82 are made of aluminum, and are integrally formed by brazing.

  As described above, the heat exchanger 80 has a configuration in which the inside air passages 81 and the outside air passages 82 are alternately arranged. Therefore, in the heat exchanger 80, the inside air and the outside air are separated and the heat exchanger 80 is separated. Through the fins 83 in the inside air passage 81 and the outside air passage 82, heat is exchanged between the high temperature inside air and the low temperature outside air.

  By the way, when manufacturing the heat exchanger 100 shown in FIG. 12, after attaching this heat exchanger 80 to the housing | casing 10, with the housing | casing 10 so that external air and rainwater may not enter into the inside air side from the boundary of inside air and outside air It is necessary to seal (seal) the heat exchanger 80.

  Therefore, conventionally, after the heat exchanger 80 is assembled to the housing 10, as shown by a thick line in FIG. 12, an inside air inlet side surface (upper surface of the heat exchanger 80) 80 a into which the inside air of the heat exchanger 80 flows is provided. The sealing material 90 was applied to each edge (excluding the boundary between the inside air inlet side surface and the inside air outlet side surface) of the inside air outlet side surface (front surface of the heat exchanger 80) 80b from which the inside air of the heat exchanger 80 flows out.

  However, when the heat exchanger 80 is attached to the housing 10, when the sealing material 90 is applied to the edges of the two surfaces 80a and 80b, an appropriate amount of the sealing material is placed in an appropriate place for reliable sealing. Therefore, it takes time to adjust the amount and location, and there is a problem that workability is poor.

  An object of this invention is to provide the heat exchanger of the structure which can improve the workability | operativity at the time of attaching a heat exchanger to a housing | casing in view of the said point.

  In order to achieve the above object, the present invention provides a heat exchanger having a flange (47, 89) disposed between a flange (47, 89) of a heat exchanger core and a mounting portion (15) of a housing. 47, 89) and the attachment portion (15), and the heat exchanger core (40, 80) is attached to the attachment portion (15) with the packing (17) sandwiched therebetween.

  Here, the flange includes at least a boundary between the first fluid inlet surface (41, 80a) and the second fluid outlet surface (44, 80d) around the heat exchanger core (40, 80), and the first fluid outlet. It is arranged at a position passing through the boundary between the surface (43, 80b) and the second fluid inlet surface (42, 80c) and has a continuous shape.

  On the other hand, the attachment portion (15) is provided inside the housing (10), and is used to attach the heat exchanger core (40, 80) to the housing (10). The heat exchanger core (40 , 80) has a flange (47, 89) of the heat exchanger core (40, 80) having an opening (16) fitted therein and the periphery of the opening (16) fitted into the opening (16). The shape is opposed to

  By adopting such a structure for the heat exchanger, it is possible to seal the heat exchanger core and the housing by pressing the packing with the flange and the mounting portion and managing the surface pressure. Thereby, when manufacturing a heat exchanger, a seal | sticker can be performed only by attaching a heat exchanger core to a housing | casing, positioning a packing between the flange and attachment part of a heat exchanger core. For this reason, according to this invention, the workability | operativity of an assembly | attachment can be improved compared with the case where a sealing material is applied.

  Further, from the viewpoint of ensuring high sealing performance, the flanges (47, 89) may be disposed around the heat exchanger core (40, 80) so that the flanges (47, 89) are located on the same plane. preferable.

  Moreover, it is preferable that the surfaces of the flanges (47, 89) in contact with the packing (17) are all parallel.

  Moreover, what is provided with a heat exchange part (50), a 1st channel | path formation part (60), and a 2nd channel | path formation part (70) can be used as a heat exchanger core (40), for example.

  Here, the heat exchange part (50) is formed by alternately forming a first passage (52) through which the first fluid flows and a second passage (53) through which the second fluid flows, by laminating the flat core plates (51). In addition, fins (54) that promote heat exchange between the first fluid and the second fluid are installed in the first passage (52) and the second passage (53), and the first fluid and the second fluid Heat exchange.

  The first passage forming part (60) is disposed on one end side of the heat exchange part (50), and includes a third passage (66) through which the first fluid flows and a fourth passage (67) through which the second fluid flows. The core plates (51) are alternately formed along the stacking direction.

  The second passage forming part (70) is disposed on the other end side of the heat exchange part (50), and a fifth passage (76) through which the first fluid flows and a sixth passage (77) through which the second fluid flows. Are alternately formed along the stacking direction of the core plates (51).

  In addition, the code | symbol in the bracket | parenthesis of each means described in the claim and this column is an example which shows a corresponding relationship with the specific means as described in embodiment mentioned later.

(First embodiment)
In this embodiment, a case where the present invention is applied to an air-air heat exchanger for cooling a mobile phone base station will be described as an example.

  In FIG. 1, the perspective view of the heat exchanger in 1st Embodiment of this invention is shown. 2 shows a transparent side view of the heat exchanger 1 in FIG. 1, FIG. 3 shows a cross-sectional view in the outside air passage of the heat exchanger 1 in FIG. 1, and FIG. 4 shows the heat exchanger 1 in FIG. Sectional drawing in an inside air passage is shown.

  FIG. 1 is a diagram showing a state in which a heat exchanger is attached to a mobile phone base station, and components similar to those in FIG. 12 are denoted by the same reference numerals as in FIG. Moreover, FIGS. 2-4 is the figure which looked at the heat exchanger of FIG. 1 from the A arrow direction.

  First, a schematic configuration of the heat exchanger according to the present embodiment will be described. As shown in FIG. 1, the heat exchanger 1 mainly includes a housing 10 and an inside air fan 20, an outside air fan 30, and a heat exchanger 40 disposed inside the housing 10.

  As shown by the arrows in FIG. 1, the housing 10 of the present embodiment has an inside air and an outside air inside the housing 10 by the inside air fan 20 and the outside air fan 30, similarly to the heat exchanger 100 shown in FIG. 12. Is supposed to flow in.

  Although details will be described later, as shown in FIGS. 1 to 4, unlike the case 10 shown in FIG. 12, an attachment plate portion for attaching the heat exchanger 40 to the case 1 is provided inside the case 10. 15 is provided. In addition, about another structure, it is the same as that of the housing | casing 10 shown in FIG.

  The heat exchanger 40 is disposed inside the housing 10 and attached to the mounting plate 15 so as to partition the internal space 2 of the building in which a heating element such as communication equipment is stored from the external space 3 thereof. ing. The heat exchanger 40 and the mounting plate portion 15 correspond to the heat exchanger core and the mounting portion described in the claims, respectively.

  As shown in FIGS. 1 and 2, the heat exchanger 40 is a substantially rectangular parallelepiped, and includes an upper surface 41, a lower surface 42 facing the upper surface 41, and a front surface adjacent to one end side of the upper surface 41 (on the near side in FIG. 1). 2, a left surface in FIG. 2) 43, a rear surface (the back surface in FIG. 1, the right surface in FIG. 2) 44 adjacent to the other end of the upper surface 41, an upper surface 41, a lower surface 42, It has two side surfaces 45 and 46 adjacent to the front surface 43 and the back surface 44. And inside air flows in from upper surface 41, inside air flows out from front 43, outside air flows in from undersurface 42, and outside air flows out from back 44.

  The inside air, the outside air, the upper surface 41, the lower surface 42, the front surface 43, and the rear surface 44 are respectively in order, the first fluid, the second fluid, the first fluid inlet surface, the second fluid inlet surface, It corresponds to the first fluid outlet surface and the second fluid outlet surface.

  The inside air and the outside air flow into the heat exchanger 40, so that the inside air and the outside air exchange heat inside the heat exchanger 40.

  Here, FIG. 5 shows a perspective view of the heat exchanger 40 in FIG. 1, and FIG. 6 shows a perspective view of the housing 10 in a state before the heat exchanger 40 is attached.

  As shown in FIG. 5, unlike the heat exchanger 80 shown in FIG. 12, the heat exchanger 40 has a flange 47 formed on the outer peripheral surface thereof. The flange 47 is arranged on the outer periphery of the heat exchanger 40 so that all the flange surfaces 47a are in the same plane, and is continuous without interruption so as to make a round around the heat exchanger 40. It has a shape.

  Specifically, the flange 47 is on the surface of the boundary portion 40 a between the upper surface 41 and the rear surface 44, the boundary portion 40 b between the lower surface 42 and the front surface 43, and the surfaces of the side surfaces 45 and 46. Therefore, it is provided at a position connecting the boundary portions 40a and 40b with a straight line. In other words, the flange 47 has a boundary 40a between the inside air inlet surface 41 and the outside air outlet surface 44, a boundary 40b between the outside air inlet surface 42 and the inside air outlet surface 43, and the boundary 40a of the outer periphery of the heat exchanger 40. , 40b on the same plane.

  And all the surfaces 47a of the flange 47 are parallel.

  The width of the flange 47 is arbitrarily set according to the packing material and the required degree of waterproofing between the heat exchanger 40 and the mounting plate 15 so that the packing 17 described later can be suppressed. The

  On the other hand, as shown in FIGS. 3, 4, and 6, an opening 16 for fitting the heat exchanger 40 is formed in the mounting plate 15 of the housing 10. The opening 16 is, for example, a quadrangle, and when the heat exchanger 40 is fitted in the opening 16, the periphery of the opening 16 is sized to face the flange 47 of the heat exchanger.

  Further, the mounting plate portion 15 is a position (in the interior of the housing 1) that partitions the internal space 2 of the building and the external space 3 by the heat exchanger 40 when the heat exchanger 40 is fitted into the opening 16 ( For example, as shown in FIG. 6, it is arranged near the center of the housing 1.

  As shown in FIGS. 2 to 4 and 6, the mounting plate portion 15 has a surface facing the flange 47 parallel to the flange surface 47 a when the heat exchanger 40 is fitted into the opening 16. As shown, the housing 10 is provided obliquely with respect to the vertical direction.

  Moreover, the attachment plate part 15 is integrated with the outer wall which comprises the housing | casing 10, for example, the attachment plate part 15 and the housing | casing 10 are integrally formed by welding.

  As shown in FIGS. 2 to 4, when the heat exchanger 40 is fitted in the opening 16 of the mounting plate 15, the packing 17 is interposed between the flange 47 and the mounting plate 15. is doing. The packing 17 has a rectangular frame shape corresponding to the shapes of the flange 47 and the mounting plate portion 15. The packing 17 seals between the heat exchanger 40 and the mounting plate portion 15. The packing 17 is made of a general material such as resin.

  Next, the configuration of the heat exchanger 40 will be described. In the heat exchanger 40 of the present embodiment, as will be described below, the heat exchange core and the first and second covers are mainly composed of separate parts, and the first and second covers are composed of resin. This is different from conventional heat exchangers.

  FIG. 7 shows an exploded perspective view of the heat exchanger 40 of FIG. 8 shows the heat exchanger 40 in a state in which the outer walls (outer peripheral surfaces) 61, 62, 71, 72 and the flange 47 of the first and second covers 60, 70 in the heat exchanger 40 of FIG. 7 are omitted. A perspective view is shown.

  As shown in FIGS. 2 to 4, 7, and 8, the heat exchanger 40 includes a heat exchange core 50 that exchanges heat between the inside air and the outside air, and leads out the inside air from the heat exchange core 50 and converts the outside air to the heat exchange core 50. And a first cover 60 that guides outside air from the heat exchange core 50 and introduces inside air to the heat exchange core 50. In addition, the heat exchange core 50, the 1st cover 60, and the 2nd cover 70 are respectively corresponded to the heat exchange part, 1st channel | path formation part, and 2nd channel | path formation part as described in a claim.

  Here, in FIG. 9, the perspective view of the heat exchange core 50 is shown. As shown in FIGS. 3, 4, and 9, the heat exchange core 50 is formed by laminating a large number of flat core plates 51 made of a metal material having excellent thermal conductivity such as aluminum, and between the adjacent core plates 51. As shown in FIGS. 4 and 9, the inside air passage 52 through which the inside air flows and the outside air passage 53 through which the outside air flows are alternately formed along the stacking direction as shown in FIGS.

  Hereinafter, the stacking direction of the core plates 51 is simply referred to as a plate stacking direction. Further, the inside air passage 52 and the outside air passage 53 correspond to the first passage and the second passage described in the claims, respectively.

  Further, as shown in FIGS. 3, 4, and 9, the inside air passage 52 and the outside air passage 53 are provided with fins 54 made of a metal material having excellent thermal conductivity such as aluminum, and the fins 54 are connected to the core plate 51. It is joined by attaching. The fin 54 promotes heat exchange with air, and is a corrugated fin in which a portion joined to the core plate 51 is formed in an arc shape, and a large number of louvers (not shown) are formed.

  On the other hand, as shown in FIG. 7, the first cover 60 and the second cover 70 are each composed of two right-angled triangular first outer walls 61 and 71 and one second wall constituting the outer wall of the heat exchanger 40. As shown in FIG. 8, the outer walls 62 and 72 have passage constituting parts 63 to 65 and 73 to 75 located inside the outer walls.

  As shown in FIG. 8, the first cover partition 63 having a right triangular shape extends in a direction perpendicular to the plate stacking direction so that the surface extends in the direction perpendicular to the plate stacking direction. Many are stacked in the direction.

  Also, as shown in FIGS. 4 and 8, the edges on the outer space 3 side of the first and second first cover partition walls 63 in the plate stacking direction are connected to each other by a first cover bottom plate 64, and FIG. As shown in FIG. 8, the edges on the inner space 2 side of the second and third first cover partition walls 63 in the plate stacking direction are connected by the first cover vertical plate 65, and hereinafter the first cover partition wall 63. Are alternately connected by the first cover bottom plate 64 and the first cover vertical plate 65 along the plate stacking direction.

  As shown in FIG. 4, the first cover bottom plate 64 and the two first cover partition walls 63 adjacent to the first cover bottom plate 64 form an inside air outlet passage 66 for leading the inside air from the heat exchange core 50, as shown in FIG. The first cover vertical plate 65 and the two first cover partition walls 63 adjacent to the first cover vertical plate 65 form an outside air introduction passage 67 for introducing outside air into the heat exchange core 50. Further, the inside air outlet passage 66 and the inside air outlet passage 66 are alternately formed along the plate stacking direction. The inside air outlet passage 66 and the inside air outlet passage 66 correspond to a third passage and a fourth passage described in the claims, respectively.

  When the heat exchange core 50 and the first cover 60 are assembled, as shown in FIG. 4, the inside air outlet passage 66 and the inside air passage 52 of the heat exchange core communicate with each other, and as shown in FIG. The first cover partition wall 63 is connected to one end side of the core plate 51 of the heat exchange core 50 so that the introduction passage 67 and the outside air passage 53 of the heat exchange core 50 communicate with each other.

  Further, in the passage constituting portions 73 to 75 of the second cover 70, as shown in FIG. 8, the second cover partition wall 73 having a right triangular shape extends in a direction perpendicular to the plate stacking direction, Many are stacked in the plate stacking direction.

  Moreover, as shown in FIG. 4, the edge part by the side of the external space 3 in the 2nd cover partition 73 of the 1st sheet | seat of the 1st sheet | seat lamination direction and the 2nd sheet | seat is connected by the 2nd cover vertical board 74, and it shows in FIG. As described above, the edges on the inner space 2 side of the second and third second cover partition walls 73 in the plate stacking direction are connected to each other by the second cover top plate 75. The second cover vertical plate 74 and the second cover top plate 75 are alternately connected along the direction.

  As shown in FIG. 4, the second cover vertical plate 74 and the two second cover partition walls 73 adjacent thereto form an inside air introduction passage 76 for introducing the inside air into the heat exchange core 50, as shown in FIG. As described above, the second cover top plate 75 and the two second cover partition walls 73 adjacent to the second cover top plate 75 form an outside air outlet passage 77 for leading outside air from the heat exchange core 50. Further, the inside air introduction passages 76 and the outside air outlet passages 77 are alternately formed along the plate stacking direction. The inside air introduction passage 76 and the outside air outlet passage 77 correspond to the fifth passage and the sixth passage described in the claims, respectively.

  In the case where the heat exchange core 50 and the second cover 70 are assembled, the inside air introduction passage 76 and the inside air passage 52 of the heat exchange core communicate with each other as shown in FIG. The second cover partition wall 73 is connected to the other end side of the core plate 51 of the heat exchange core 50 so that the lead-out passage 77 and the outside air passage 53 of the heat exchange core 50 communicate with each other.

  Further, as shown in FIG. 7, the first outer wall 61 of the first cover 60 and the first outer wall 71 of the second cover 70 constitute the side surfaces 45 and 46 (see FIG. 5) of the heat exchanger 40. The shape is divided at the part where the flange 47 is arranged. That is, the first outer wall 61 of the first cover 60 and the first outer wall 71 of the second cover 70 are right triangles having long sides 61a and 71a, short sides 61b and 71b, and oblique sides 61c and 71c, and the oblique sides 61c of each other. , 71c are combined to form the rectangular side surfaces 45, 46 of the heat exchanger 40.

  The correspondence between FIG. 7 and FIG. 8 will be described. The first outer wall 61 of the first cover 60 has a long side 61a that coincides with the long side 63a of the first cover partition wall 63, and the heat exchange core 50 In the state in which the first cover 60 and the second cover 70 are combined, the short side 61 b thereof coincides with the upper end side 51 a of the heat exchange core 50 and the short side 73 b of the second cover partition wall 73.

  Further, the first outer wall 71 of the second cover 70 has a long side 71 a that coincides with the long side 73 a of the second cover partition wall 73, and the heat exchange core 50, the first cover 60, and the second cover 70 are combined. In this state, the short side 71 b coincides with the lower end side 51 b of the heat exchange core 50 and the short side 63 b of the first cover partition 63.

  Further, the second outer wall 62 of the first cover 60 is rectangular and covers the upper end surface 50 a of the heat exchange core 50. The second outer wall 62 of the first cover 60 and the second cover top plate 75 (see FIG. 3) constitute the upper surface 41 of the heat exchanger 40. Similarly, the second outer wall 72 of the second cover 70 is also rectangular and covers the lower end surface 50 b of the heat exchange core 50. The lower surface 42 of the heat exchanger 40 is configured by the second outer wall 72 of the second cover 70 and the first cover bottom plate 64 (see FIG. 4).

  As shown in FIG. 7, in the first cover 60, the hypotenuse 61c of the first outer wall 61 and the boundary between the inside air outlet surface and the outside air inlet surface of the passage constituting portion (the right angle portion of the first cover partition wall 63 in FIG. 8). 63c) is provided with a first flange 68. In the second cover 70, a second flange 78 is provided at the boundary (the right-angled portion 73c of the second cover partition wall 73) between the oblique side 71c of the first outer wall 71 and the inside air inlet surface and the outside air outlet surface of the passage component. Yes.

  The heat exchange core 50 is sandwiched between the first cover 60 and the second cover 70, and the first flange 68 of the first outer wall 61 of the first cover 60 and the second flange 78 of the first outer wall 71 of the second cover 70 are aligned. As a result, as shown in FIG. 5, a flange 47 that goes around the outer periphery of the heat exchanger 40 is formed.

  The first cover 60 and the second cover 70 are integrally formed in a shape having a flange with a resin such as ABS, polypropylene (PP), polystyrene (PS), and polyamide (PA). Thus, in the present embodiment, the flange 47 is integrally formed with the first cover 60 and the second cover 70 using the same material as the first cover 60 and the second cover 70.

  Next, a method for manufacturing the heat exchanger 1 described above will be described.

  As shown in FIG. 7, the 1st cover 60, the heat exchange core 50, and the 2nd cover 70 are prepared. And the heat exchanger 40 is formed as shown in FIG. 5 by inserting | pinching the heat exchange core 50 with the 1st cover 60 and the 2nd cover 70. FIG.

  Subsequently, as shown in FIG. 6, the housing 1 in which the mounting plate 15 having the above-described shape is provided, the heat exchanger 40 in the state shown in FIG. 5, and the packing 17 are prepared. Then, the heat exchanger 40 shown in FIG. 5 is fitted into the opening 16 of the mounting plate 15 so that the packing 17 is located between the flange 47 and the mounting plate 15.

  Thereafter, for example, the surface pressure between the flange 47 and the mounting plate portion 15 is adjusted to a desired level by tightening the flange 47 and the mounting plate portion 15 with screws.

  Thus, the heat exchanger 1 shown in FIG. 1 is manufactured.

  Next, main effects of this embodiment will be described.

  In the present embodiment, as shown in FIG. 5, on the outer periphery of the heat exchanger 40, the boundary 40 a between the inside air inlet surface 41 and the outside air outlet surface 44 of the heat exchanger 40, the outside air inlet surface 42, and the inside air outlet surface 43. , And a flange 47 which is continuous on the same plane passing through these boundaries 40a and 40b without interruption, and whose surfaces 47a are all in the same plane.

  Further, as shown in FIG. 6, the housing 1 has an opening 16 into which the heat exchanger 40 is fitted, and when the heat exchanger is fitted into the opening 16, Is provided with a mounting plate portion 15 having a size facing the flange 47 of the heat exchanger 40.

  Then, with the packing 17 disposed between the flange and the mounting plate portion 15, the heat exchanger 40 is fitted into the opening 16 of the mounting plate portion 15, and the packing 17 is sandwiched between the flange 47 and the mounting plate portion 15. I am trying. In this manner, the packing 17 is pressed against each other by the flange 17 and the mounting plate portion 15 and the surface pressure is managed, so that the space between the heat exchanger 40 and the mounting plate portion 15 is sealed.

  Thereby, when manufacturing the heat exchanger 1, the heat exchanger 40 is fitted into the opening 16 of the mounting plate 15 while the packing 17 is positioned between the flange 47 of the heat exchanger 40 and the mounting plate 15. Only between the heat exchanger 40 and the mounting plate portion 15 can be sealed. For this reason, the workability | operativity of an assembly | attachment can be improved compared with the case where the conventional sealing material is applied.

(Second Embodiment)
In 1st Embodiment, although the heat exchanger 40 demonstrated as an example the case where it comprised from the separate components of the heat exchange core 50, the 1st cover 60, and the 2nd cover 70, in this embodiment, heat A case where the exchanger is integrally formed of the same parts will be described.

  In FIG. 10, the perspective view of the heat exchanger in 2nd Embodiment is shown. FIG. 10 is a diagram corresponding to FIG. 13, and the same reference numerals as those in FIG. 13 are attached to the same components as those in FIG. 13.

  The heat exchanger 80 shown in FIG. 10 has basically the same configuration as the heat exchanger 80 shown in FIG. Specifically, a plurality of substantially rectangular plates 84 are stacked in parallel at regular intervals, and fins 83 are disposed between adjacent plates 84. The adjacent plate 84, the bottom plate 85, and the first vertical plate 86 constitute an inside air passage 81, and the adjacent plate 84, the top plate 87, and the second vertical plate 88 constitute an outside air passage 82. .

  The fin 83, the plate 84, the bottom plate 85, the first vertical plate 86, the top plate 87, and the second vertical plate 88 are all made of, for example, aluminum, and the heat exchanger 80 is integrally formed by brazing. Has been.

  Thus, the heat exchanger 80 of this embodiment has a structure in which the core plate 51 described in the first embodiment also serves as the first cover partition wall 63 and the second cover partition wall 73.

  And in this heat exchanger 80, the flange 89 is the outer periphery of the heat exchanger 40 similarly to 1st Embodiment, Comprising: The internal air inlet surface (upper surface) 80a and the outdoor air outlet surface (back surface) of the heat exchanger 40 It is continuously provided without interruption at a position passing through the boundary 80d and the boundary between the outside air inlet surface (lower surface) 80c and the inside air outlet surface (front surface) 80b. The flange 89 is also made of aluminum, for example, and is integrally formed with the heat exchanger 80 by brazing.

  Even when the heat exchanger 80 is integrally formed of aluminum, the effect similar to that of the first embodiment can be obtained by providing the flange 89 in this way.

  The heat exchanger 80 corresponds to the heat exchanger core described in the claims. Further, the upper surface 80a, the lower surface 80c, the front surface 80b, and the rear surface 80d are in order of the first fluid inlet surface, the second fluid inlet surface, the first fluid outlet surface, and the second fluid outlet, respectively. It corresponds to the surface.

  Here, the core plate 51 described in the first embodiment has been described as an example of a structure that also serves as the first cover partition wall 63 and the second cover partition wall 73. However, for example, a core made of aluminum is used. It is also possible to prepare the plate 51, the first cover partition wall 63, and the second cover partition wall 73 separately and braze them together.

(Other embodiments)
(1) In FIG. 11, the side view of the heat exchanger in other embodiment is shown. FIG. 11 is a diagram corresponding to FIG. 2, and components similar to those in FIG. 2 are denoted by the same reference numerals as those in FIG. 2.

  In 1st Embodiment, although the surface 47a (refer FIG. 5) which contact | connects the packing 17 of the flange 47 was demonstrated as an example, all between the heat exchanger 40 and the mounting plate part 15 were demonstrated. If the seal can be secured, the surface 47a of the flange 47 that contacts the packing 17 does not necessarily have to be parallel to all surfaces.

  For example, as shown in FIG. 11, the surface 47b of the flange 47 located at the edge of the upper surface 41 and the edge of the lower surface 42 of the heat exchanger 40 can be inclined with respect to the other surface 47a. In this case, the shape of the mounting plate portion 15 is changed to correspond to the flange 47.

  (2) In the first embodiment, the flange 47 includes the boundary 40 a between the inside air inlet surface 41 and the outside air outlet surface 44 and the boundary 40 b between the outside air inlet surface 42 and the inside air outlet surface 43 in the outer periphery of the heat exchanger 40. As an example, the case where they are arranged on the same plane passing through the boundaries 40a and 40b has been described. However, if it is possible to prevent the outside air and rainwater from entering the inside air from the boundary between the inside air and the outside air, the flange 47 can be used. It can also be provided at the position.

  For example, as shown by a thick line in FIG. 12, an inside air inlet side surface (upper surface of the heat exchanger 80) 80a into which the inside air of the heat exchanger 80 flows, and an inside air outlet side surface (heat exchange) through which the inside air of the heat exchanger 80 flows out. The flange 47 can also be provided at each edge (excluding the boundary between the inside air inlet side surface and the inside air outlet side surface) of 80b.

  Thus, the flange 47 can be provided at a position passing through at least the boundary 40a between the inside air inlet surface 41 and the outside air outlet surface 44 and the boundary 40b between the outside air inlet surface 42 and the inside air outlet surface 43. In this case, the shape of the mounting plate portion 15 is made to correspond to the flange 47.

  (3) In the first embodiment, the case where the first flange 68 serving as the flange 47 is formed integrally with the first cover 60 and the second flange 78 serving as the flange 47 is formed integrally with the second cover 70 has been described as an example. However, the flange 47 may be formed as a separate part from the first cover 60 and the second cover 70 and bonded to the first cover 60 and the second cover 70.

  (4) In 2nd Embodiment, although the case where the flange 89 was comprised with aluminum similarly to the core plate etc. which comprise the heat exchanger 80 was demonstrated as an example, it is not restricted to aluminum but flanges with other metals. Can also be configured. For example, the flange can be made of a metal material having high corrosion resistance such as iron, copper, and stainless steel.

  Note that the flange and the heat exchanger itself can be made of the same metal material or different metal materials. In this case, the flange is formed integrally with the heat exchanger by brazing or bonding.

  (5) In 1st Embodiment, when providing the flange 47 (1st flange 68, 2nd flange 78) comprised with the resin material with respect to the 1st, 2nd covers 60 and 70 comprised with the resin material. As an example, a flange made of a material different from the first and second covers (for example, a metal material) can be provided on the first and second covers.

  Moreover, in 2nd Embodiment, although the case where the flange 89 comprised with the metal material was provided as an example with respect to the heat exchanger 80 comprised with aluminum, ie, a metal material, it differs from the heat exchanger 80. A flange can also be comprised with material (for example, resin material). In these cases, the flange can be provided in the heat exchanger by bonding the flange to the first and second covers.

  (6) In each of the above-described embodiments, the case where the present invention is applied to base station cooling applied to a mobile phone base station heat exchanger has been described as an example. However, heat exchange between a high-temperature fluid and a low-temperature fluid is performed. Can be applied to heat exchangers in other fields.

It is a perspective view of the heat exchanger in 1st Embodiment of this invention. It is a permeation | transmission side view of the heat exchanger 1 of FIG. It is sectional drawing in the external air channel | path of the heat exchanger 1 of FIG. It is sectional drawing in the internal air channel | path of the heat exchanger 1 of FIG. It is a perspective view of the heat exchanger 40 in FIG. It is a perspective view of the housing | casing 10 in the state before attaching the heat exchanger 40 in FIG. It is a disassembled perspective view of the heat exchanger 40 of FIG. FIG. 8 is a perspective view of the heat exchanger 40 in a state where outer walls 61, 62, 71, 72 and flanges 47 of the first and second covers 60, 70 in the heat exchanger 40 of FIG. 7 are omitted. It is a perspective view of the heat exchange core 50 in FIG. It is a perspective view of the heat exchanger in 2nd Embodiment of this invention. It is a perspective view of the heat exchanger in other embodiments of the present invention. It is a perspective view of the conventional mobile phone base station cooling air-air type heat exchanger. It is an enlarged view of the heat exchanger 80 in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Heat exchanger, 10 ... Housing, 15 ... Mounting plate part, 17 ... Packing,
40, 80 ... heat exchanger, 47, 89 ... flange.

Claims (8)

In a heat exchanger comprising a heat exchanger core (40, 80) housed in the housing (10) and exchanging heat between the first fluid and the second fluid flowing into the housing (10),
The heat exchanger core (40, 80) includes a first fluid inlet surface (41, 80a) through which the first fluid flows into the heat exchanger core (40, 80) and a first fluid inlet surface (41). 80a), the first fluid outlet surface (43, 80b) through which the first fluid flows out from the heat exchanger core (40, 80), and the first fluid inlet surface (41). 80a), a second fluid inlet surface (42, 80c) through which the second fluid flows into the heat exchanger core (40, 80), and the first fluid inlet surface (41, 80). 80a) and the second fluid outlet surface (44, 80d) adjacent to the second fluid inlet surface (42, 80c) and through which the second fluid flows out from the heat exchanger core (40, 80). ) And
Of the periphery of the heat exchanger core (40, 80), at least a boundary between the first fluid inlet surface (41, 80a) and the second fluid outlet surface (44, 80d), and the first fluid outlet surface ( 43, 80b) and a flange (47, 89) having a continuous shape is formed at a position passing through the boundary between the second fluid inlet surface (42, 80c),
The housing (10) includes an attachment portion (15) for attaching the heat exchanger core (40, 80) to the housing (10) inside the housing (10).
The mounting portion (15) has an opening (16) into which the heat exchanger core (40, 80) is fitted, and the periphery of the opening (16) is fitted into the opening (16). Further, the heat exchanger core (40, 80) has a shape facing the flange (47, 89),
A packing (17) is disposed between the flange (47, 89) and the mounting portion (15), and the packing (17) is sandwiched between the flange (47, 89) and the mounting portion (15). In a state, the heat exchanger core (40, 80) is attached to the attachment portion (15). The heat exchanger according to claim 1, wherein the flanges (47, 89) are arranged around the heat exchanger core (40, 80) so as to be located on the same plane. The heat exchanger according to claim 2, wherein the flanges (47, 89) are all parallel in contact with the packing (17). The heat exchanger core (40)
The first passage (52) through which the first fluid flows and the second passage (53) through which the second fluid flows are alternately formed by laminating a flat core plate (51), and the first passage ( 52) and fins (54) for promoting heat exchange with the first fluid and the second fluid are installed in the second passage (53), and heat exchange is performed between the first fluid and the second fluid. A heat exchanging part (50)
The core plate (51) is laminated with a third passage (66) through which the first fluid flows and a fourth passage (67) through which the second fluid flows, arranged on one end side of the heat exchange part (50). First passage forming portions (60) alternately formed along the direction;
A fifth passage (76) through which the first fluid flows and a sixth passage (77) through which the second fluid flows are arranged on the other end side of the heat exchange part (50), and the core plate (51). The heat exchanger according to any one of claims 1 to 3, further comprising second passage forming portions (70) formed alternately along the stacking direction. The heat exchange part (50) is made of a metal material, and the first and second passage forming parts (60, 70) are made of a resin material,
The flange (47) has a structure integrally formed with the first and second passage forming portions (60, 70) using the same material as the first and second passage forming portions (60, 70). The heat exchanger according to claim 4. The heat exchange part (50) is made of a metal material, and the first and second passage forming parts (60, 70) are made of a resin material,
The heat exchanger according to claim 4, wherein the flange (47) is made of a resin material and has a structure bonded to the first and second passage forming portions (60, 70). The heat exchange part, the first and second passage forming parts, and the flange are made of the same metal material,
5. The heat exchanger according to claim 4, wherein the flange is made of a metal material and has a structure integrally formed with the first and second passage forming portions by brazing. The heat exchange part, the first and second passage forming parts are made of the same metal material,
The flange is made of a metal material different from that of the heat exchange part and the first and second passage forming parts, and has a structure formed integrally with the first and second passage forming parts by bonding. The heat exchanger according to claim 4.

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